Stability of high-beta tokamaks to ballooning modes

H. R. Strauss; W. Park; D. A. Monticello; R. B. White; S. C. Jardin; M. S. Chance; A. M.M. Todd; A. H. Glasser

doi:10.1088/0029-5515/20/5/014

Stability of high-beta tokamaks to ballooning modes

H. R. Strauss, W. Park, D. A. Monticello, R. B. White, S. C. Jardin, M. S. Chance, A. M.M. Todd, A. H. Glasser

PPPL Theory

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Abstract

Fixed-boundary ballooning modes are found to possess a second globally stable regime for high-beta flux-conserving equilibria. This confirms a conjecture of several authors based on local analysis of the instability in the vicinity of the magnetic axis. The range of unstable beta values depends on the details of the equilibrium and, in particular, on shear. Very high shear can decrease the width of the unstable region.

Original language	English (US)
Pages (from-to)	635-642
Number of pages	8
Journal	Nuclear Fusion
Volume	20
Issue number	5
DOIs	https://doi.org/10.1088/0029-5515/20/5/014
State	Published - May 1980

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

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title = "Stability of high-beta tokamaks to ballooning modes",

abstract = "Fixed-boundary ballooning modes are found to possess a second globally stable regime for high-beta flux-conserving equilibria. This confirms a conjecture of several authors based on local analysis of the instability in the vicinity of the magnetic axis. The range of unstable beta values depends on the details of the equilibrium and, in particular, on shear. Very high shear can decrease the width of the unstable region.",

author = "Strauss, \{H. R.\} and W. Park and Monticello, \{D. A.\} and White, \{R. B.\} and Jardin, \{S. C.\} and Chance, \{M. S.\} and Todd, \{A. M.M.\} and Glasser, \{A. H.\}",

year = "1980",

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doi = "10.1088/0029-5515/20/5/014",

language = "English (US)",

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pages = "635--642",

journal = "Nuclear Fusion",

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T1 - Stability of high-beta tokamaks to ballooning modes

AU - Strauss, H. R.

AU - Park, W.

AU - Monticello, D. A.

AU - White, R. B.

AU - Jardin, S. C.

AU - Chance, M. S.

AU - Todd, A. M.M.

AU - Glasser, A. H.

PY - 1980/5

Y1 - 1980/5

N2 - Fixed-boundary ballooning modes are found to possess a second globally stable regime for high-beta flux-conserving equilibria. This confirms a conjecture of several authors based on local analysis of the instability in the vicinity of the magnetic axis. The range of unstable beta values depends on the details of the equilibrium and, in particular, on shear. Very high shear can decrease the width of the unstable region.

AB - Fixed-boundary ballooning modes are found to possess a second globally stable regime for high-beta flux-conserving equilibria. This confirms a conjecture of several authors based on local analysis of the instability in the vicinity of the magnetic axis. The range of unstable beta values depends on the details of the equilibrium and, in particular, on shear. Very high shear can decrease the width of the unstable region.

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U2 - 10.1088/0029-5515/20/5/014

DO - 10.1088/0029-5515/20/5/014

M3 - Article

AN - SCOPUS:84956272939

SN - 0029-5515

VL - 20

SP - 635

EP - 642

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 5

ER -

Stability of high-beta tokamaks to ballooning modes

Abstract

All Science Journal Classification (ASJC) codes

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